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A089458
Number of n-celled polyominoes with exactly 6 holes.
4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 2131, 38022, 480713, 4872679, 42360239
OFFSET
1,23
KEYWORD
nonn,hard,more
AUTHOR
Joseph Myers, Nov 04 2003
EXTENSIONS
a(27)-a(28) from Tomás Oliveira e Silva's page added by Andrey Zabolotskiy, Oct 02 2022
STATUS
approved